Asco 300-1200A-1Ph-Open Transition ATS-NEMA 1

…Ideal Switch for Selected-Circuit 1-Phase Backup

Asco 300-Series automatic transfer switches are heavy-duty commercial-grade models that can be used for both commercial and residential purposes. Our 1200-Amp 1-phase Asco 300 is open-transition rated; open transition means that it does not contain a built-in circuit breaker to disconnect utility power before backup power is employed. For safety reasons, the electrician handling installation of the transfer switch will need to supply an external breaker, however this is an easy, routine procedure. We recommend this switch for the following Winco standby generators: models PSS60LS-3, and PSS90LS-3. Model comes with an indoor-mount enclosure, sturdy but not weatherproof. 18-month warranty; optional extended warranties available at checkout (see Accessories tab for details).

Important: Please see the shipping tab for information regarding the freight on generator accessories.

Spec Sheet Pdf

Warranty

18-month limited warranty

Shipping

Asco transfer equipment is shipped either from T-Rex facilities in Utah, or from Asco factory locations in New Jersey or Texas, via standard UPS ground. In all instances, T-Rex makes no profit on shipping. For every accessory we sell, our customers will be charged only what Asco or another vendor has charged us. Shipping to your location will be calculated during checkout. Please allow up to 10 business days for delivery.